South Dakota State Mail-In Voting Information for the Presidential Election 2020 South Dakota Early voting: September 18–November 2. Voter registration deadline: October 19 Absentee voting: Ballot requests must be submitted by November 2 at 5 p.m., and completed ballots must be received by November 3 at 7 p.m. Any eligible voter can vote by mail without an excuse. southdakotabiden$20.00Choose: SizeMens SmallMens MediumMens LargeMens XLargeMens 2XLarge(+2.00)Mens 3Xlarge(+4.00)Womens SmallWomens MediumWomens LargeWomens Xtra-largeYouth SmallYouth MediumYouth Large Quantity: (c) Copyright 2021, All Rights Reserved.